Table 2 Risk factors distribution among intussusception incident cases included in the overall study cohort (2002–2012)

Total (at least one risk factor)

291

 Inflamed appendix

102

35.1

 Gastroenteritis

129

44.3

 Cystic fibrosis

5

1.7

 Hirschsprung disease

2

0.7

 Reduplication/intestinal duplication

1

0.3

 Lymphoma

3

1.0

 Intestinal tumor

6

2.1

 Henoch-Schönlein purpura

28

9.6

 Meckel diverticulum

2

0.7

 Intestinal polyps (benign tumor)

3

1.0

 Peutz-Jeghers syndrome

4

1.4

 Nephrotic syndrome

6

2.1

 Kawasaki disease

2

0.7

 Ectopic pancreas in ileum

1

0.3

 Hemolytic-uremic syndrome

1

0.3